Partial nephrectomy through retroperitoneal approach with a new surgical robot system, KD-SR-01

Area of Science:

• Urology
• Robotic Surgery
• Nephrology

Background:

• Partial nephrectomy (PN) is a standard treatment for renal tumors.
• The retroperitoneal approach (RP) offers advantages for accessing posterior and lateral tumors.
• Evaluating novel robotic systems for PN is crucial for advancing surgical techniques.

Purpose of the Study:

• To evaluate the safety and efficacy of the Kangduo robotic system for retroperitoneal partial nephrectomy (RPPN).
• To assess perioperative outcomes and complications associated with robotic-assisted RPN.
• To determine the feasibility of using the Kangduo system for renal tumors with varying complexity.

Main Methods:

• Prospective collection of perioperative data from 11 patients undergoing RPN with the Kangduo robotic system.
• Analysis of R.E.N.A.L. nephrometry scores, tumor location (posterior/midline), and surgical parameters.
• Assessment of surgical margins, warm ischemia time, and perioperative complications.

Main Results:

• All 11 procedures were completed successfully with no positive surgical margins (all pT1a).
• The median warm ischemia time was 18.5 minutes.
• No high-grade perioperative complications or device-related adverse events were observed, with no complications at 8-month follow-up.

Conclusions:

• Robotic-assisted retroperitoneal partial nephrectomy (RPPN) using the Kangduo system is a safe and effective surgical option.
• This approach is suitable for managing posterior and lateral renal tumors with R.E.N.A.L. nephrometry scores up to 9.
• The Kangduo robotic system facilitates successful RPN with favorable short-term outcomes.